<template>
  <div>
    <quill-editor v-model="content"
                  ref="myTextEditor"
                  :options="editorOption"
                  @change="onChange"
    >
      <div id="toolbar" slot="toolbar">
        <span class="ql-formats"><button type="button" class="ql-bold"></button></span>
        <span class="ql-formats"><button type="button" class="ql-italic"></button></span>
        <span class="ql-formats"><button type="button" class="ql-underline"></button></span>
        <span class="ql-formats"><button type="button" class="ql-strike"></button></span>
        <span class="ql-formats"><button type="button" class="ql-blockquote"></button></span>
        <span class="ql-formats"><button type="button" class="ql-code-block"></button></span>
        <span class="ql-formats"><button type="button" class="ql-header" value="1"></button></span>
        <span class="ql-formats"><button type="button" class="ql-header" value="2"></button></span>
        <span class="ql-formats"><button type="button" class="ql-list" value="ordered"></button></span>
        <span class="ql-formats"><button type="button" class="ql-list" value="bullet"></button></span>
        <span class="ql-formats"><button type="button" class="ql-script" value="sub"></button></span>
        <span class="ql-formats"><button type="button" class="ql-script" value="super"></button></span>
        <span class="ql-formats"><button type="button" class="ql-indent" value="-1"></button></span>
        <span class="ql-formats"><button type="button" class="ql-indent" value="+1"></button></span>
        <span class="ql-formats"> <button type="button" class="ql-direction" value="rtl"></button></span>

        <span class="ql-formats"><select class="ql-size">
        <option value="small"></option>
        <option selected></option>
        <option value="large"></option>
        <option value="huge"></option>
      </select></span>
        <span class="ql-formats"><select class="ql-header">
        <option value="1"></option>
        <option value="2"></option>
        <option value="3"></option>
        <option value="4"></option>
        <option value="5"></option>
        <option value="6"></option>
        <option selected="selected"></option>
      </select></span>
        <span class="ql-formats"><select class="ql-color">
        <option selected="selected"></option>
        <option value="#e60000"></option>
        <option value="#ff9900"></option>
        <option value="#ffff00"></option>
        <option value="#008a00"></option>
        <option value="#0066cc"></option>
        <option value="#9933ff"></option>
        <option value="#ffffff"></option>
        <option value="#facccc"></option>
        <option value="#ffebcc"></option>
        <option value="#ffffcc"></option>
        <option value="#cce8cc"></option>
        <option value="#cce0f5"></option>
        <option value="#ebd6ff"></option>
        <option value="#bbbbbb"></option>
        <option value="#f06666"></option>
        <option value="#ffc266"></option>
        <option value="#ffff66"></option>
        <option value="#66b966"></option>
        <option value="#66a3e0"></option>
        <option value="#c285ff"></option>
        <option value="#888888"></option>
        <option value="#a10000"></option>
        <option value="#b26b00"></option>
        <option value="#b2b200"></option>
        <option value="#006100"></option>
        <option value="#0047b2"></option>
        <option value="#6b24b2"></option>
        <option value="#444444"></option>
        <option value="#5c0000"></option>
        <option value="#663d00"></option>
        <option value="#666600"></option>
        <option value="#003700"></option>
        <option value="#002966"></option>
        <option value="#3d1466"></option>
      </select></span>
        <span class="ql-formats"> <select class="ql-background">
        <option value="#000000"></option>
        <option value="#e60000"></option>
        <option value="#ff9900"></option>
        <option value="#ffff00"></option>
        <option value="#008a00"></option>
        <option value="#0066cc"></option>
        <option value="#9933ff"></option>
        <option selected="selected"></option>
        <option value="#facccc"></option>
        <option value="#ffebcc"></option>
        <option value="#ffffcc"></option>
        <option value="#cce8cc"></option>
        <option value="#cce0f5"></option>
        <option value="#ebd6ff"></option>
        <option value="#bbbbbb"></option>
        <option value="#f06666"></option>
        <option value="#ffc266"></option>
        <option value="#ffff66"></option>
        <option value="#66b966"></option>
        <option value="#66a3e0"></option>
        <option value="#c285ff"></option>
        <option value="#888888"></option>
        <option value="#a10000"></option>
        <option value="#b26b00"></option>
        <option value="#b2b200"></option>
        <option value="#006100"></option>
        <option value="#0047b2"></option>
        <option value="#6b24b2"></option>
        <option value="#444444"></option>
        <option value="#5c0000"></option>
        <option value="#663d00"></option>
        <option value="#666600"></option>
        <option value="#003700"></option>
        <option value="#002966"></option>
        <option value="#3d1466"></option>
      </select></span>
        <span class="ql-formats"><select class="ql-font">
        <option selected="selected"></option>
        <option value="serif"></option>
        <option value="monospace"></option>
      </select></span>
        <span class="ql-formats">
        <select class="ql-align">
        <option selected="selected"></option>
        <option value="center"></option>
        <option value="right"></option>
        <option value="justify"></option>
      </select>
      </span>
        <span class="ql-formats">
          <button type="button" class="ql-clean"></button>
      </span>
        <span class="ql-formats">
          <button type="button" class="ql-link"></button>
      </span>
        <span class="ql-formats">
          <button type="button" @click="imgClick">
            <svg viewBox="0 0 18 18">
                <rect class="ql-stroke" height="10" width="12" x="3" y="4"></rect>
                <circle class="ql-fill" cx="6" cy="7" r="1"></circle>
                <polyline class="ql-even ql-fill" points="5 12 5 11 7 9 8 10 11 7 13 9 13 12 5 12"></polyline>
            </svg>
          </button>
      </span>
      </div>
    </quill-editor>
    <crop-upload
      v-model="showCrop"
      :width="width"
      :height="height"
      :fileName="fileName"
      :uploadUrl="uploadUrl"
      @uploadSuccess="onUploadSuccess"
    ></crop-upload>
  </div>
</template>
<script>
  import { quillEditor } from 'vue-quill-editor'
  import 'quill/dist/quill.core.css'
  import 'quill/dist/quill.snow.css'
  import 'quill/dist/quill.bubble.css'
  import CropUpload from './CropUpload'
  export default {
    props: {
      /* 编辑器的内容*/
      value: {
        type: String
      },
      /* 上传图片的地址*/
      uploadUrl: {
        type: String
      },
      /* 上传图片的file控件name*/
      fileName: {
        type: String,
        default: 'upload_file'
      },
      /* 图片大小*/
      maxSize: {
        type: Number,
        default: 400 // kb
      },
      /* 使用使用裁切*/
      canCrop: {
        type: Boolean,
        default: false
      },
      /* 裁切的最小尺寸*/
      width: {
        type: Number,
        default: 200
      },
      /* 裁切的最小尺寸*/
      height: {
        type: Number,
        default: 200
      }
    },
    data() {
      return {
        content: '',
        editorOption: {
          modules: {
            toolbar: '#toolbar'
          }
        },
        /* 显示裁切控件*/
        showCrop: false
      }
    },
    methods: {
      onChange() {
        this.$emit('input', this.content)
      },
      /* 选择上传图片切换*/
      onFileChange(e) {
        var fileInput = e.target
        if (fileInput.files.length === 0) {
          return
        }
        if (fileInput.files[0].size > 1024 * 1024 * this.maxSize) {
          this.$alert('图片尺寸过大', {
            confirmButtonText: '确定',
            type: 'warning'
          })
          return
        }
        if (!this.uploadUrl) {
          console.log('no editor uploadUrl')
          return
        }
        var self = this
        var data = new FormData()
        data.append(this.fileName, fileInput.files[0], name)
        this.editor.focus()
        var xhr = new XMLHttpRequest()
        xhr.open('post', this.uploadUrl)
        xhr.responseType = 'json'
        xhr.send(data)
        console.log(data)
        xhr.onload = function() {
          if (xhr.status === 200) {
            self.editor.insertEmbed(self.editor.getSelection().index, 'image', xhr.response.data[0])
          }
        }
      },
      /* 裁切上传成功 res根据上传接口值获取*/
      onUploadSuccess: function(res) {
        this.editor.focus()
        this.editor.insertEmbed(this.editor.getSelection().index, 'image', res.response.data[0])
      },
      /* 点击上传图片按钮*/
      imgClick() {
        if (this.canCrop) {
          this.showCrop = true
        } else {
          /* 创建input file 不裁切，自己控制*/
          var input = document.createElement('input')
          input.type = 'file'
          input.name = this.fileName
          input.accept = 'image/jpeg,image/png,image/jpg,image/gif'
          input.onchange = this.onFileChange
          input.click()
        }
      }
    },
    computed: {
      editor() {
        return this.$refs.myTextEditor.quill
      }
    },
    components: {
      quillEditor,
      CropUpload
    },
    mounted() {
      this.content = this.value
    },
    watch: {
      'value'(newVal, oldVal) {
        if (this.editor) {
          if (newVal !== this.content) {
            this.content = newVal
          }
        }
      }
    }
  }
</script>

<style>
  .ql-editor{
    height: 240px;
    overflow-y: auto;
  }
</style>
